I found this link through Adobe's support that perfectly
describes the problem I'm having:
http://www.adobe.com/go/kb401230
In short, when a movie clip has "stop ();" in it's first
frame, instead of stopping, the clip, well, doesn't stop. It just
plays through. While that's happening, the skins on any components
on the stage flicker like a strobe light.
The above link has a few suggested solutions, the first being
to download the most recent version of Flash Player. I've done
this, but am still having the same problem.
I've tried the other two suggestions to the best of my
abilities, but they're either not getting any results or I'm making
a mistake somewhere that I don't understand.
Has anyone else experienced this problem? Any ideas on how to
fix it?